LIC6+-+Stream

= LONG ISLAND CREEK SITE 6A = = STREAM CHARACTERISTICS =

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 * [[image:geog4100_ 418.JPG width="442" height="328"]] || [[image:geog4100_ 419.JPG width="441" height="326"]] ||
 * Looking Upstream || Looking Downstream ||

__Method__
We used a tape measurer to calculate the stream width from the top of the left bank to the top of the right bank. In order to find out both the landscape of the river bed and of the bank, we measured the length from the top of the bank to the bottom of the bank and top of the water in 21 intervals (3 ft each) across the stream. Then we measured the length from the top of the water level to the stream bed in 6 intervals (2 ft each). By putting these measurements together we were able to come up with an accurate visual landscape of the stream banks and stream bed.



__Physical Measurements__
The study location for Long Island Creek Site 6A has a bank to bank width of 20 feet with a reach of 240 ft. The steam flow decreased each week over the course of the monitoring due to a continuing drought in the state of Georgia. On the week of June 12 (after 0.20 inches of rain) the stream flow was measured at 20.48 cfs. The following week on June 19, the stream flow measured 27.04 cfs. The last week of monitoring on June 26, the stream flow was 22.08 cfs.


 * Chart A5**. This chart shows the discharge or water flow seen at Long Island Creek Site 6A. The day before the June 12 measurement, it rained causing the water level to rise drastically in comparison to the levels seen when no current rain was present; this was most likely the cause of a faster water flow. It should be noted that Georgia was in a significant drought during this period in time.

__In-Stream Characteristics__
Within the calculated reach of this portion of Long Island Creek 6A the study area has one low-angle turn, 4 pools, 3 riffles, and 4 runs. The stream bed mostly consisted of sand and silt with a few rocks that ranged from 100% embedded to not embedded at all. The only occasional debris was mainly natural, such as small leaves, and almost no trash/litter was found. It should also be noted that both banks of this particular section of Long Island Creek are located in an environmental corridor/National recreation area, so there are no homes extremely close to our reach. The water was non-staining and had no suspended matter during our testing period. Also, the water had no particular odor and the water surface was clear.

The left bank of the creek (looking upstream) was eroded, but contained trees and some dense ground shrubbery. The left bank's main problem was the exposed soil and exposed roots. The right bank (looking upstream) was heavily eroded, but contained trees and some dense ground shrubbery. The right bank was undercut, had obvious loss of soil, exposed soil, and exposed roots. Because of the steep slopes, both banks contained a fair number of trees that had severely exposed roots. Both banks contained about 90% vegetation despite the fair amount of erosion present.

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